If model Preload is not checked, batch is invalid?Is this a bug?
You may have to regenerate the batch after assets have been loaded and used in the scene
var modelAsset = pc.app.assets.get(models[0].asset);
if (modelAsset) {
if (!modelAsset.resource) {
modelAsset.once("load", function () {
setTimeout(function () {
for (var i = 0; i < models.length; i++) {
if(models[i].batchGroupId != -1) models[i].batchGroupId = -1;
models[i].batchGroupId = group.id;
}
}, 0);
});
} else {
setTimeout(function () {
for (var i = 0; i < models.length; i++) {
if(models[i].batchGroupId != -1) models[i].batchGroupId = -1;
models[i].batchGroupId = group.id;
}
}, 0);
}
}
OK, that’s the only way for now, but can this be repaired?
After you have loaded and added all the models/entities to the scene at runtime, try marking the batch group as dirty so it generates the batch on the next frame BatchManager | PlayCanvas API Reference
If you are still running into issues, please post a project example for people to look at
Thank you for your reply. It has been solved. 
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